| osseous lacuna | A cavity in bony tissue occupied by an osteocyte. (05 Mar 2000) |
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| osseous part of skeletal system | The part of the skeleton composed of bone. Synonym: pars ossea systematis skeletalis. (05 Mar 2000) |
| osseous polyp | A polyp consisting in part of bony tissue. (05 Mar 2000) |
| osseous tissue | A connective tissue, the matrix of which consists of collagen fibres and ground substance and in which are deposited calcium salts (phosphate, carbonate, and some fluoride) in the form of an apatite. Synonym: bone tissue. (05 Mar 2000) |
| endo-osseous implant | An implant into alveolar bone inserted through the prepared root canal of a tooth in order to increase effective root length. (05 Mar 2000) |
| florid osseous dysplasia | Benign fibro-osseous jaw lesions of unknown aetiology, occurring predominantly in middle-aged black females, which present as large painless radiopaque masses usually involving several quadrants of the jaw. Synonym: florid osseous dysplasia, cemental dysplasia. (05 Mar 2000) |
| proximal spiral septum | See: spiral septum. (05 Mar 2000) |
| secondary spiral plate | A ridge on the outer wall of the first turn of the cochlea opposite the spiral lamina. Synonym: lamina spiralis secundaria, secondary spiral plate. (05 Mar 2000) |
| spiral | Of leaves or floral organs, borne at different levels on the main stem, in an ascending spiral. Compare: cyclic. (09 Oct 1997) |
| spiral and curved bacteria | A large, very diverse group of bacteria in which some species are curved, some helical. (12 Dec 1998) |
| spiral artery | <anatomy, artery> One of the corkscrew-like artery's in premenstrual or progestational endometrium. Synonym: coiled artery of the uterus. (05 Mar 2000) |
| spiral bandage | An oblique bandage encircling a limb, the successive turns overlapping those preceding. (05 Mar 2000) |
| spiral bulbar septum | See: spiral septum. (05 Mar 2000) |
| spiral canal of cochlea | The winding tube of the bony labyrinth which makes two and a half turns about the modiolus of the cochlea; it is divided incompletely into two compartments by a winding shelf of bone, the bony spiral lamina. Synonym: canalis spiralis cochleae, Rosenthal's canal, spiral canal of cochlea. (05 Mar 2000) |
| spiral canal of modiolus | <anatomy> The space in the modiolus in which the spiral ganglion of the cochlear nerve lies. Synonym: canalis spiralis modioli. (05 Mar 2000) |